This is an unbranded, built and bought from the same vender as the Sundown SFB 8k. I also have 5k amps, 600.4 amp, 8” 8ohm midrange speakers all brand new. I have many subwoofers 12” and 15” only. Let me know anything you might be interested in.Attachment 87638Attachment 87639Attachment 87640Attachment 87641
